The 69-year-old actor will play Henry "Hank" Pym, the creator of the technology used to shrink a human to the size of an insect, in the Edgar Wright directed film, reported BBC online.
"I've been dying to do a Marvel picture for so long. The script is really fun, the director is really good. Dylan (the actor's 13-year-old son) will love it. He'll have a picture he can see," he said.
Hank Pym first appeared in the 27th issue of Marvel Comics series 'Tales to Astonish' in January 1962.
The plot for 'Ant-Man' has yet to be revealed.
Marvel, owned by Disney, has had success at the box office recently, with films such as 'Avengers' and 'Iron Man 3' making billions worldwide.